#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>

int main()
{
	int high = 0;
	int weight = 0;
	double BMI = 0;
	double temp = 0;
	scanf("%d %d", &weight, &high);
	temp = high / 100.0;
	temp = temp * temp;
	BMI = weight / temp;
	printf("%.2f\n", BMI);

	return 0;
}
//#define _CRT_SECURE_NO_WARNINGS 1
//#include<stdio.h>
//
//int main()
//{
//	double high = 0;
//	double weight = 0;
//	double temp = 0;
//	double BMI = 0;
//	scanf("%f %f", &high, &weight);
//	temp = (high / 100) * (high / 100);
//	BMI = weight / temp;
//	printf("%.2f\n", BMI);
//
//	return 0;
//}